Function: earbuds with built in remote control Button and mic allowing calling function, music and volume control. Ergonomic and ultra-lightweight in-ear designed with solid sound-insulating material, reduces external noise and wearing comfort. Premium Sound Quality : High quality stereo audio output comes with rich bass tones, crisp mids, balanced treble with HD clarity. Enjoy your favorite music or movie without bother by noisy environment. Auto Charging Bluetooth: Earbuds can be recharged from the connector itself via the phone, so you do not have to worry about Bluetooth usage time.